Evaluation of different orange maturation curves by means of cluster analysis

Detalhes bibliográficos
Autor(a) principal: Junior, Dirceu Mattos
Data de Publicação: 1999
Outros Autores: Gonzales, Angela Fuentes, Junior, Jorgino Pompeu, Parazzi, Clóvis
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/5571
Resumo: Fruit maturation of seventeen sweet orange clones and cultivars were evaluated by cluster analysis. Soluble solids (°Brix) and acidity were determined during the spring season 1995, in Cordeirópolis, SP, Brazil. Polynomial equations were determined between August and December and values for those variables were estimated 70, 75, 80, 85 and 90 days after the initial fruit sampling. The data set was standardized to perform cluster analysis regarding the Euclidean distance measure and the linkage rule as UPGMA type. Four clusters were selected in regard to fruit maturation stage. Navelência, the earliest clone, showed 13.4°Brix and 0.83% acidity in the beginning of the considered period. The Pêra cultivar, another single clone cluster, showed ratio higher than 12.0 after middle October. The Natal, Folha Murcha, Old Bud Line, Cutter, Valência, Lue Ging Gong and Tuxpan orange clones and cultivars formed a third cluster, which reached harvesting maturity during middle November, whereas, Frost, Whits, Olinda, Late, Stone, Chaffei, Werley and Berry clones reached the same stage forty days later.
id EMBRAPA-4_05797d9bfa9457f8b4668df45dc22bff
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/5571
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Evaluation of different orange maturation curves by means of cluster analysisAvaliação de curvas de maturação de laranjas por análise de agrupamentoorange juice; quality; citrus; germplasmanálise de qualidade; citros; laranja-doce; germoplasmaFruit maturation of seventeen sweet orange clones and cultivars were evaluated by cluster analysis. Soluble solids (°Brix) and acidity were determined during the spring season 1995, in Cordeirópolis, SP, Brazil. Polynomial equations were determined between August and December and values for those variables were estimated 70, 75, 80, 85 and 90 days after the initial fruit sampling. The data set was standardized to perform cluster analysis regarding the Euclidean distance measure and the linkage rule as UPGMA type. Four clusters were selected in regard to fruit maturation stage. Navelência, the earliest clone, showed 13.4°Brix and 0.83% acidity in the beginning of the considered period. The Pêra cultivar, another single clone cluster, showed ratio higher than 12.0 after middle October. The Natal, Folha Murcha, Old Bud Line, Cutter, Valência, Lue Ging Gong and Tuxpan orange clones and cultivars formed a third cluster, which reached harvesting maturity during middle November, whereas, Frost, Whits, Olinda, Late, Stone, Chaffei, Werley and Berry clones reached the same stage forty days later.Foram avaliadas curvas de maturação de frutos de 17 clones e cultivares de laranjas-doces pela análise de agrupamento. Determinou-se o °Brix e a acidez das laranjas no período de agosto a dezembro de 1995, em Cordeirópolis, SP, obtendo-se as curvas que descrevem o comportamento das variáveis ao longo do tempo. Com base no ajustamento de equações polinomiais, foram calculadas estimativas médias para °Brix e acidez aos 70, 75, 80, 85 e 90 dias após o início da coleta de frutos para análises. Com os dados padronizados, obteve-se o agrupamento pela média de grupos de pares não balanceados. Distinguiram-se quatro grupos de clones e cultivares de laranjas quanto à maturação. Um dos grupos, formado apenas pelo clone Navelência, apresentou 13,4°Brix e acidez de 0,83%, no início do período considerado, mostrando maturação precoce em relação aos outros clones e cultivares. A cultivar Pêra também formou um grupo isolado, com a razão °Brix/acidez superior a 12,0, em meados de outubro. Para o grupo formado pelas laranjas Natal, Folha Murcha, Old Bud Line, Cutter, Valência, Lue Ging Gong e Tuxpan foi revelada a segunda quinzena de novembro como a época adequada para colheita, enquanto que, o agrupamento dos clones Frost, Whits, Olinda, Late, Stone, Chaffei, Werley e Berry atingiu a mesma relação de sólidos solúveis e acidez após 40 dias.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraJunior, Dirceu MattosGonzales, Angela FuentesJunior, Jorgino PompeuParazzi, Clóvis1999-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5571Pesquisa Agropecuaria Brasileira; v.34, n.12, dez. 1999; 2203-2209Pesquisa Agropecuária Brasileira; v.34, n.12, dez. 1999; 2203-22091678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5571/2762info:eu-repo/semantics/openAccess2010-06-29T16:28:34Zoai:ojs.seer.sct.embrapa.br:article/5571Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-06-29T16:28:34Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Evaluation of different orange maturation curves by means of cluster analysis
Avaliação de curvas de maturação de laranjas por análise de agrupamento
title Evaluation of different orange maturation curves by means of cluster analysis
spellingShingle Evaluation of different orange maturation curves by means of cluster analysis
Junior, Dirceu Mattos
orange juice; quality; citrus; germplasm
análise de qualidade; citros; laranja-doce; germoplasma
title_short Evaluation of different orange maturation curves by means of cluster analysis
title_full Evaluation of different orange maturation curves by means of cluster analysis
title_fullStr Evaluation of different orange maturation curves by means of cluster analysis
title_full_unstemmed Evaluation of different orange maturation curves by means of cluster analysis
title_sort Evaluation of different orange maturation curves by means of cluster analysis
author Junior, Dirceu Mattos
author_facet Junior, Dirceu Mattos
Gonzales, Angela Fuentes
Junior, Jorgino Pompeu
Parazzi, Clóvis
author_role author
author2 Gonzales, Angela Fuentes
Junior, Jorgino Pompeu
Parazzi, Clóvis
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Junior, Dirceu Mattos
Gonzales, Angela Fuentes
Junior, Jorgino Pompeu
Parazzi, Clóvis
dc.subject.por.fl_str_mv orange juice; quality; citrus; germplasm
análise de qualidade; citros; laranja-doce; germoplasma
topic orange juice; quality; citrus; germplasm
análise de qualidade; citros; laranja-doce; germoplasma
description Fruit maturation of seventeen sweet orange clones and cultivars were evaluated by cluster analysis. Soluble solids (°Brix) and acidity were determined during the spring season 1995, in Cordeirópolis, SP, Brazil. Polynomial equations were determined between August and December and values for those variables were estimated 70, 75, 80, 85 and 90 days after the initial fruit sampling. The data set was standardized to perform cluster analysis regarding the Euclidean distance measure and the linkage rule as UPGMA type. Four clusters were selected in regard to fruit maturation stage. Navelência, the earliest clone, showed 13.4°Brix and 0.83% acidity in the beginning of the considered period. The Pêra cultivar, another single clone cluster, showed ratio higher than 12.0 after middle October. The Natal, Folha Murcha, Old Bud Line, Cutter, Valência, Lue Ging Gong and Tuxpan orange clones and cultivars formed a third cluster, which reached harvesting maturity during middle November, whereas, Frost, Whits, Olinda, Late, Stone, Chaffei, Werley and Berry clones reached the same stage forty days later.
publishDate 1999
dc.date.none.fl_str_mv 1999-12-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/5571
url https://seer.sct.embrapa.br/index.php/pab/article/view/5571
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/5571/2762
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.34, n.12, dez. 1999; 2203-2209
Pesquisa Agropecuária Brasileira; v.34, n.12, dez. 1999; 2203-2209
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416703891210240

Registros relacionados